Backpack



FIG. 1 is a perspective view of a backpack showing my new design.

FIG. 2 is a top view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a front view thereof.

FIG. 5 is a rear view thereof

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

The broken lines in the drawings indicate parts of the article and form no part of the claimed design.

The surface shading and contour lines shown in the drawings represent the three-dimensional character and contour of the article, and are not intended to illustrate material, surface ornamentation or surface decoration. 

CLAIM The ornamental design for a backpack, as shown and described. 